Wrench.



T. H. KNGTT.l

' WRENCH.

APPLIOATION FILED 00T. 30, 1908.

Patented Sept; 7, 1909. 2 SHEETS-SHEET l.

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witnwoco T. H. KNOTT.

WRENCH.

APPLICATION FILED 00T. 30, 1908.

9.3 3,649, Patented sept. 7, 1909.

2 SHEETS-SHEET 2.

I A l 720141415 /mnL( UNiTED sTATEs PATENT oEEioE.

THOMAS H. KNOTT, OF LEBANON, SOUTH DAKOTA.

WRENCH.

To all whom it may concern:

Be it known that I, THOMAS H. KNOTT, a citizen of the United States,residing at Lebanon, in the county of Potter, State of South Dakota,have invented certain new and useful Improvements in lVrenches; and T dohereby declare the following to be a full, clear, and exact descriptionof the invention, such as will enable others skilled in the art to whichit appertains to make and use the same.

This invention relates to wrenches, and has for one of its objects toimprove the construction and increase the utility and efficiency ofdevices of this character.

Another object of the invention is to provide a wrench compact instructure, which may be inexpensively manufactured,is strong unddurable, and wherein the operative parts are covered and protected.

With these and other objects in view, the invention consists in certainnovel features of construction as hereafter shown and described and thenspecifically pointed out in the claim, and in the drawings illustrativeof the preferred embodiment of the invention, Figure 1 is a sideelevation of the improved wrench. Fig. 2 is a longitudinal sectionalelevation. Fig. 3 is a transverse section on the line 3-3 of Fig. 1.Fig. 4 is a section on the line 4-4 of Fig.'1. Fig. 5 is a frontelevation of the improved implement.

The improved device comprises a longitudinal shell 10 having a aw 11 atone end with a guard element 12 extending from the other end, the guardelement being provided with a laterally extended bearing 13 at its freeend. The shell 10 is formed with an internal longitudinal guideway 14,preferably transversely oblong and provided with an annular seat 15 inthe end opposite to the jaw 11.

The stock of the wrench is formed with an oblong portion 16 adapted toslidably engage in the guideway 14 and with a threaded portion 17, thestock having a jaw 18 at the end opposite to the threaded portion. Bythis means the two jaws 11#18 are arranged in opposing relations.

Engaging over the threaded portion 17 Specification of Letters Patent.

Application filed October 30, 1908.

Patented Sept. 7, 1909.

serial No. 460,324.

of the stock is an internally threaded hand grip member 19, the member19 having a bearing 20 engaging the annular yseat 15 at one end. Themember 19 is thus arranged to extend partly into the guard element 12,the latter being curved to conform substantially to the curvature of themember 19 and to project partly thereover, as shown in Fig. 4.

Fitting through the bearing 13 is a clamp stud 21 threaded where itpasses through the member 13 and engaging by its inner end in anaperture in the member 19. The member 19 is of less length than thedistance between the seat end of the member 10 and the bearing 13 toenable it to be inserted in position, and the space otherwise leftbetween the members 19-13 is filled by a spacer washer or block 22. Thuswhen the parts of the implement are to be assembled the member 19 is rstinserted with its bearing 20 inthe seat 15, and the spacer member 22arranged in position and the clamp stud 21 inserted. The stock 16 isthen inserted into the guideway 14 of the member 10 with its threadedportion 17 in position to enter the threaded member 19, and when thelatter is rotated it is obvious that the stock will be drawn into theshell 10 until the jaws 11-18 are in contact. Then by simply rotatingthe member 19 the space between the jaws may be adjusted t0 any requiredextent within the range of the threaded portion of the stock. It will benoted that the operative parts of the implement are entirely concealedand protected from dust and other deleterious matter.

The handle member will preferably be formed with a sheathing 0f wood orlike material represented at 23. The implement will be made entirely ofmetal except the sheathing 23, and may be manufactured in any requiredsize.

What is claimed, is

A wrench comprising a stock having a jaw at one end and with a threadedstud eX- tending from the other end, a shell inclosing said stock andslidable thereon and with a jaw at one end and an integral guard elementextending from the other end, the terminal of the guard eiement beingdirectedV nj other end to the inwardly directed terminal wardly oppositethe terminal of the threaded of. thel guard element; Y 10 stud, theshell being 'provided With an an- In testimony whereof, I ax mysignature, nular seat at the juncture therewith of the in presence oftwo Witnesses.

guard element, a hand grip member nterl THOMAS H. KNOTT. nally threadedand provided with a bearing Witnesses:

engaging in the seat of said shell, and means PETER SCHNEIDER,

for coupling the hand grip member at its` GEO. KNOTT.

